Millions of people sought refuge in their homes and other places amid severe cold conditions during the night and early morning to endure a cold storm that has claimed the lives of at least 24 people across the United States. The storm trapped some residents in their homes due to accumulated snow drifts and caused power outages affecting hundreds of thousands of homes and businesses. The scope of the storm was nearly unprecedented, extending from the Great Lakes near Canada to the Rio Grande along the border with Mexico. The National Weather Service reported that approximately 60 percent of the U.S. population faced some form of winter weather alerts or warnings, with temperatures plummeting significantly below normal levels from the eastern Rockies to the Appalachians. About 1,346 domestic and international flights were canceled as of Sunday morning, according to the tracking website "FlightAware."